How to change fonts on X (Twitter): how to use bold and italics?
![スマートフォンのホーム画面の[Social]フォルダーを表示した写真。フォルダー内にはFacebook、Instagram、Threads、X、LinkedIn、TikTok、YouTubeのアイコンが配置されている](/_next/image/?url=%2Fapi%2Fmedia%2Ffile%2Ffacebook-instagram-threads-x-twitter-linkedin-tiktok-youtube-mobile-app-unsplash.jpg&w=3840&q=75)
On X (Twitter), you can make text in a post (tweet) bold or italic. This article explains how to change the font of posts on X to bold or italics.
Table of Contents
How to change a post’s font
There are official paid methods and unofficial free methods to change the font of text in X posts. With the paid method, you can change the font of all characters, whereas the free method only changes some characters.
Official paid method
The official way to change a post’s font is to subscribe to X’s paid subscription service, X Premium.
With X Premium, you can make fonts bold or italic, post long posts that exceed 280 characters, and organize bookmarks into folders.
![Xのブックマーク画面に複数のフォルダーが表示されている画像。フォルダーの名前はそれぞれ[すべてのブックマーク][イラスト][面白い投稿]となっている](/_next/image/?url=%2Fapi%2Fmedia%2Ffile%2Fimage-1378.png&w=1920&q=75)
X Premium has three plans: the cheapest Basic, the mid-range Premium, and the most expensive Premium+, but font changes are available on all plans.
![スマートフォンのホーム画面の[Social]フォルダーを表示した写真。フォルダー内にはFacebook、Instagram、Threads、X、LinkedIn、TikTok、YouTubeのアイコンが配置されている](/_next/image/?url=%2Fapi%2Fmedia%2Ffile%2Ffacebook-instagram-threads-x-twitter-linkedin-tiktok-youtube-mobile-app-unsplash.jpg&w=3840&q=75)
When you subscribe to X Premium, buttons for changing the font are added to the post composer.
On the desktop web version, a button labeled B and a button labeled I appear at the bottom of the post composer.
With the text you want to change selected, pressing the B button makes it bold and pressing the I button makes it italic.
![Xの投稿画面。テキスト欄に[テスト]と入力されており、下部のツールバーにある太字(B)と斜体(I)のボタンが赤枠と赤い下向き矢印で強調されている。右下に[ポストする]ボタンが表示されている](/_next/image/?url=%2Fapi%2Fmedia%2Ffile%2Fx-web-rich-text-format.png&w=1920&q=75)
In the mobile app, tapping the button with a small A and a large A side by side reveals the same B and I buttons as on the desktop web version.
![Xの投稿画面。テキスト欄に[テスト]と入力されており、下部ツールバーの左端にある[AA]ボタンが赤枠と赤い下向き矢印で強調されている。画面下部には日本語入力キーボードが表示され、右上に[ポストする]ボタンがある](/_next/image/?url=%2Fapi%2Fmedia%2Ffile%2Fx-mobile-app-rich-text-format.png&w=1920&q=75)
Note that you cannot use font changes on the mobile web version, so please install the mobile app or set your browser to display the desktop website.
Free method
Using this website, you can change the font of a post for free.
This website also lets you change fonts outside of X, but basically you can only change the alphabet and cannot change Japanese or other fonts.
Also, strictly speaking, it does not change the font but converts characters to different ones, so there is a possibility that some websites or tools will not find them in search.
To change the font on this website, enter text in the text box, then find and click the button for the font you want to apply below.
If you click a button while only part of the text in the text box is selected, only that part’s font will be changed.
Which method should you use?
Which is better to use: the paid official feature provided by X or the unofficial free feature?
If you simply want to change the font for free, the free method is recommended.
On the other hand, if you want to change the font of Japanese text, you need to use the official paid feature.
Summary
We introduced how to change text fonts to bold or italics on X.
There are two ways: using the feature that X provides as part of its paid subscription service “X Premium,” and using unofficial tools.
While free tools cannot change the font of Japanese text, the X Premium feature can also change the font of Japanese text.
Share this article
Follow us for updates
Adding us to your preferred sources on Google makes it easier to find our articles on Google. Also, be sure to follow us on X and our RSS feed.
Next articles
- [Android] Can you no longer hide images on X? How to reduce image data usage with the new settings
- Did the font change in the X app for Android? How to change the text size
- [Android] Why X images do not change when you tap and hold and how to fix it
- Why reposts and replies do not appear on X and how to find them in the new Android and iOS profiles
- Why X DMs show someone as “Member,” how to fix it, and how to check who you were chatting with
-1.png&w=1080&q=75)
I've been using JavaScript more than my native language since birth. I am nowhere and everywhere on the internet.
I build web apps and browser extensions in TypeScript as a web frontend programmer. I released Shadowban Scanner, a tool that detects shadowbans on X, and Restore Link Card, a tool that brings back link cards. Media outlets in Japan and abroad covered both tools. For iGEM 2023, I built the Wiki for Team Japan-United and helped the team win the Grand Prize. On my blog, I cover news about X and social media, test and troubleshoot bugs, and share frontend development insights.





![Screenshot of [Accessibility, display, and languages] > [Display] > [Font size] in the X settings](/_next/image/?url=%2Fapi%2Fmedia%2Ffile%2Fx-android-font-size-settings-english.png&w=3840&q=75)
![Screenshot of X’s settings screen showing the options under [Accessibility, display, and languages] > [Data usage]](/_next/image/?url=%2Fapi%2Fmedia%2Ffile%2Fx-data-saver-high-resolusion-image-settings-english.png&w=3840&q=75)



![[新しいXチャットへようこそ]というテキストが画面に大きく表示されており、その下には次の3つの説明が表示されている。[エンドツーエンドの暗号化:メッセージは、端末にかかわらずエンドツーエンドで暗号化されています。][最先端のプライバシー:Xを含め、他の人がメッセージを読むことはできません。][パスコードを設定:メッセージを保護するため、4桁のパスコードを設定してください。]これらの説明の下には、[パスコードを作成]という大きなボタンが配置されている](/_next/image/?url=%2Fapi%2Fmedia%2Ffile%2Fwelcome-to-new-chat.png&w=1920&q=75)



![A screenshot of a dialog titled [What are you reporting?] with [Spam] selected](/_next/image/?url=%2Fapi%2Fmedia%2Ffile%2Fx-report-post-spam-selected-english.png&w=1920&q=75)